Lab.gruppen PLM 20000Q - Manual (Page 91)

Application Guide
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PLM Series Operation Manual rev 1.2.3
10. Application Guide
This chapter describes the practical application and use of PLM Series devices.
10.1 Rack I/O Panels
For fast and simple system connection, pre-wired racks using connection panels can be used. With an
I/O connector panel fitted to the front of the rack, all audio, loudspeaker, network and power cables can be
plugged in at one position, without requiring rear panel access.
Although rental companies and large system users may have existing preferred designs, Figure 10-1
provides a suggested layout. This example provides AES3 and analog audio connections; a separate panel
would be used for Ethernet connections.
Figure 10-1: Example I/O Connector Panel
10.2 Power Distribution
For professional applications it is recommended that the sum of the available mains power is above 3000
W per PLM (e.g. 230 V x 16 A, 120 V x 32 A). As PLM 20000Q devices are equipped with BEL, the cur-
rent draw of the device can be configured to perfectly match the power distribution. PLM 10000Q and
PLM 14000 are equipped with PAL, so the power supply will limit its mains current draw (both momentary
current draw and current draw over time) to be less than 28 A for the 230 V version and less than 53 A for
the 115 V version.
Safety approved equipment is not required to have a mains breaker, as long as this does not pose any fire
hazard under fault conditions, as is the case with the PLM.
Please see the following examples suggesting power distribution methods across multiple PLM devices.
All of the examples given will work, although the first examples for both 230 V and 115 V operation have a
slight advantage due to their “power sharing” ability.